Multiple-contact relay.



G. BABOOCK.

MULTIPLE CONTACT RELAY.

APPLICATION FILED SEPT.21,1912.

1,1 33,786. Patented Mar. 30, 1915.

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G.- EABCOOK.

MULTIPLE CONTACT RELAY.

APPLICATION TILED $32121, 1912. Y

1,1 33,786. Patented Mar. 30, 1915.

4 SHEETS'SHEET 2 I 15 a H MK/1714mm I g l W 9% 57 G'axzwson Baacocx,

G BABCOGK. MULTIPLE ooumcw RELAY.

APPLICATION FILED SIEIIT.21A 1912 1,1 33,786, Patem'xed Mar. 80, 191-5.

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UNITED STATES OFFICE.

GABRIS'ON BABCOC'K, OF ROCHESTER, NEW YG'EK. BY MESNE ASSIGNMENTS,

- TO FKEDERZCK C. "STEVENS, OF AKTICA, HEX

MULTIPLE-GONTACT RELAY.

Specification of Letters Eateat.

Itatentetl Mar. 30, 1915.

To all 11: om it may, Bower-n:

Be it known that l. (lanzusox Bane/out, citizen of the United States.residing at Rochester. in the county of Monroe and. State of New York.have inrentecl Certain new and useful linproreinents in Multiple (outactRelays. of which the following is a specification.

My invention relates to imprmements in inultiplwcontact relays. and hasfor its ob ject the })l()\'l. .)ll of a relay device. which will combinea maximum etlieienov. certainty of operation and extreme connactness.whereby a relatively large number of electriea l. circuits may beo'penen or closed simultaneonsly.

My invention particularly applicable for use in automatic orsemiautomatic telephone systems. wherein certain groups or units ofcontacts must be frequently made and broken uncler severe o 'ieratingconclit-ions.

My relay (lerice in its seven embodimerits. heretofore produeeifl l..,i;ne(l for use, and insures satisiactory servit until-r the cornlitionsmentioned.

Describing in a preliminary \rlv the salient features oil my unprorementhe same consists of an actuating electro-n'iagnet. or a plurality' ofsuch magnets acting together for the purpose of altering the elee triralcondition of associated. paired Contact springs, eat-l1 pair forming oneterminal ol the controlled circuit. These spring are mounted closelytogether in paired rel: .ion upon eil e. preterahlv staggered in twoliurizontal Pl'rll'lifl. "the vials of the paired springs prob ably are(lixnrgentlv bent. anil beneath the diverging enils there arerespectively positional the opposingcircuit ierurinals comprisingpartially llatteneil wires, which are similarly staggered in a commoninsulating mounting trip, aetuated. through the agency of the electio-maguet or magnets. Obviously. these circuit-terminals may nor anallyhe llt'ltl in engagement or out of contact. ill-pending upon thecharacter of. the circuits to he ontrolled. and the groups of springsand ('OZIJ-llllff terminals may he assenilileil in accorrlan a it'll the(lo-area uun'ilier ol' rouia sts to he nnule or lHOlitll, since runzparterlgewise lllll Sl'HJ Pl'Ml.KHOUUL 1. a \'i W in side elevation of aorealtingr. reiav rleviee embodying my imp winents. Fig. 2, a similarView a circuit making! relay-device. F 3. is an underside rim anal Fig.3 isia cross sectional e assembling strap for se terminals andinsulating Jell within the relay. Fig.

girartiallr broken snay, of the i i i. Fig. 5. is an end.

2. Fig. 6, is 6 is a frag- 6 is a fragview: all upon an enlarged scale.filifflhlg two contact springs and their assoeii'rril I :lfillltll. Fig.7, shows a side and entl View respectively of one of the ininginountingblocks for llllll enacting terminal. Fig. 1 a time unit multiple(Ol'ltElCt my in'iprorenients. Fig.

l an eruil view -.tivel Show Hzfil anti end naming the springs andterll'zl"ll'ltilllll)-' portions therein. l sirle elevation. andpartially in section showing a sin 'le electroniagnct adapted for theactuation of my improved multiple contact relay. Fig. 2 shows anextension. pole-piece thereof in side and end elevations. Fig. 3", showsside and top elevations of the spacing-member and mounting screw for tl.(la lro -rnagnet. Fig. l". is iile view ol the single-magnet,rrmltiplewonaart relay eniomlying my imnrorenients. Fig. 5 is anenlarged detail of view or a l rag in menta ry menial";

iniuars Fig. 1. l1:

rgeeyse one of the flattened Wire terminals preferably em )loyed in myrelay. Fig. is an enlarged detail partially broken of one set or contactsprings and F 1g. '2'", is a fragmentary section showing the mounting ofa. group of springs-end'contaet termin-ale within a snitahle insulatingcement.

. p see.

'lhronghentthe several figures of the drawings; 1 have employed theserne ehamcter of reference to indicate similar parts.

. It will he observed that in the different types of relays thus fardeveloped along the lines of my invention, that the general reletion ofthe magnet or magnets, the springs, the coacting terminals, and their actaunting parts is substantially identical. In the tyne of cimuitbreeking relay, of course, action of the armature is for the purpose ofseparating the normally closed contacts thereof, while said contactparts may more conveniently mounted beneath, instead ofabove the nets.

1 will first explain my improvements as embodied in the oireuitqnalaingrelay of .Figs. 2- end 5, and detail the diiferences appeering in theother relays, as in particular the preferred singlemngnet relay, of Figs1' end 4 es representing the most eflicient, simple and compact type formany pur- The magnet frame (5 supports the two electro-rnagnets I) b,partially inclowd beneath said frame. The ermatures a c are of thebell-crank type, and are united for concerted action by the strap 05.The longer arms of the bell-crank lovers 0' lie upon the top of theframe; being substantially eo-extenslve in length with theelectro-magnets. The paired contact springs e and their 00- actingterminals f are reerwardly secured Within the composite mounting strip;the former preferably being in staggered reletion. Somethirty one pairsof springs are shown in "full size by Fig. 5 of the drawings. Thesesprings are of riecnlier rectangular form, and are mounted upon edgewith the rectsngnlarly extending ends thereof, sliglii'tly tiered ordivergently bent, respectively to engage the enacting terminals.Somewhat the same result of a. staggered mounting for the springs, mayhe obtained by employing alternating paired springs having longer andshorter rectangular extensions, as indico ted in Fig. 7 The meeting;terminals are also of distinct-i '1 con struction being-formed of shortit ths of Wire 1 tenet] approximately throughout one-ha t' to two-thirdsof their lengths and reerwardly milled, or suitably roughened, as arethe springs, in order to hold these parts more secmely 'Wltl'llll thecomposite mountstrip. These springs and terminals are capable of beingvery closely mounted edjncent to each other in the desired group-s, orsubstantially unitary structure, between the paired springs 6, While thetop is cut by,

e groove '2' for the accommodation of the mounting strip This strip isshown in Fig. 3, with an interior rib j, which is adapted to be seatedin the groove a" of the assembled insulating parts 2', is, Z, the latterbeing but partially grooved sincethey are designed for the spacing orterminal insulators only.

The requisite no tier of paired springs e and coacting terminals beingassembled in groups, or otherwise, as indicated in Figs. 3 and 5, forexample, and tightly compressed to insure the retention of the parts inplace, the binding strip is positioned about the assembled insulators,springs and terminals, and the ends j thereof are passed tirougliopenings out in frame a, and bent inwardly to secure the compositemounting strip in position upon the relay. Thewires forming theterminals 7 are then passed through staggered holes bored for theirreception in the common actuating strip m of fiber or other insulatinginhterial, which. strip m is secured at the ends of the lever erms'c.Thus the rounded cylindrical ends of sold terminals are held closely ad-]acent to the staggered ends of their coacting paired springs, as bestshown in Fig. 5;

the normal tension of the flattened Wires".

serving to maintain the terminals out of Contact, andzthe arrnatures intheir normal positions, a. short distance from the cores of theirrespective eleotromagnets. Upon the excitzition of said magnets, thearms, tore-s will be instentlv attracted, thereby raising their extendedends ofthe attached nsulating strip m, and respectively 'engag mg theround Wire terminals f betweien their pznred springs e; the contactrelatilin there oi being shown by the springs and. erminals t Fig. 4.staggering the divergent ends the springs in horizontal planfs, there isetforded no opportunity for short-circuitlng these closclyhssembledmembers, While all are accessible for inspecti 'gin, and adjustment inthe relay as inounthd for giving service. Since the paired springsterminate one side of the circuit, while the Wire terminal forms theother side of said dircuit Within the relay, series contacts are avoidedand an ellicient rubbing contact with relae'ly light pressure, isinsured for the terminal, between ee' 1 springs. This member. moreover,is easily entered between the paired spring While the tension. of thefiat tened Wie, tendsto sephrete the terminal h uilording s cheap andetlicientasseinbinge for these parts. Instead of using the sepiirstefiber insulators, however, I also mount the springs and terminals in.suitnblj spaced relation, within a jig and embed the parts Witl'iiu an.insulating cement n, which takes the place of the fiber blocks andmounts the springs in equally close relation shown in 4 and 7 A cementof gum srabic, lava dust and plaster Paris be used, I

1e contact-breaking relay of Figs. 1 and s structurally the as the onealready rilied, except as to those dC-llilllS/WlliCll L i it for openinga, plurality of nornuilly osed circuits, rod the pro ision of cementsulzited sin-ii o and terminals. In this the strip is mounted within :1rec lair rolic 0 which :lCiUiitCtl by the relay :irinstures to raisesuid strip against J tension or" the terminals 7" and open the 'orslcontrolled circuits at the paired r'ng contacts 0. These terminals andsprings are. positioned upon an extension 0,

v of the .t'i-zinie which mounts them in {-i plane hmow theelectromsgnots.

l i- 'sr It, 2 and 3 :1 fire-unit mounting contncts is provided,controllable I ndi'z'ig number if t o elcotro rung u as sp andassoc-uteri ten minals are mounted in groups or four coasting sets, eachcinitrolloble by its own armature, Othorivisc. the construction isidentical with the relay of l igs. 3 and heretofore d :scribod Theinoiiilicrl tr shown in l is n v utilizi the mount of springs, andtorn'iinu previously :ioined, hut :1 single armature 1.1-" is prod forsc rimtion by i. elongate-d clrctro This is provided with extrusion Z9,titted upon the sore oi said magnet ud mspeotiveiy losing the cxtromiiios of the armature c" having their heads tapped to receive the screwsr extending through frame a, are attached to the extensionpoles forsecuring elsotromagnut in position upon the relay. 'ypc of relaydcrelruvs it much higher tor given current consumption, uiiido the rc'ously dose bud, and y nor to construct, tliun are the others, whichrecommends it for s 'iplicotious, to automatic or tolephony. Theextension Scrow-bolts of The novel means for mounting the contactsprings, provided in the inclosing strap having its ends clenched orsuitably secured upon the opposite side 01' the frame, affords n simpleand extremely cheap ()I1S."Hil011. It will be observed that the contactsprings and the flattened portions of the terminals are mounted indifferent planes, at right angles to each other Within the insulation.These terminals serve to lock the separate insulating-parts againstvertical movement, because of their engagement Within the two opposinggrooves between each adjacent pair of insulating parts. Thus the usualintermed ate fastening-menus, Whenever a plurality of Contact springsand insulating parts are assembled in prior constructions, has beenobviated by the interlocking festuros of the pr wont type of mounting.(lo-enter rigidity is insured by using ribbed inolosing strap for theassembled-parts The terminals 7" preferably are made of pl:osphor-bronzowire cut to lengths corre sponding with the Contact springs. Theflattened roar portions of these terminals, :i'l'lord soldering contactsfor the wires, While the portions thereof intermediate of the insulatingmountings of said terminals, constitute springs for restoring the armolure, thus making the some self-restoring. Since th actuating insulatorstrip for the terminals is disposed reurwzirdly of the contuctmwlaingends of the springs and tor minals, those parts are accessible forinspection and adjustment, while the relay is con nectcd for givingscrvice.

Having now described several types of relay cruisti'ncted in accordancewith the principles of my invention, I claim as new and desire to secureby those Lrttcrs Patent, the following r 1. ln a relay device, thcromliinntion with a plurality of Contact sprin mounted in closelyndincmit \ori'ioul 3" 19s, of a plu it sourcing insuintors respectivelyposo id ping ends thereof are in staggered relation along saidhorizontal planes, and means controllable by the armature for alteringthe electrical relation of said springs, substantially as set forth.

3. In a relay device, the combination with an electromagnet and itsactuating armature, of paired contact springs having dicombination witha plurality of rectangular paired contact springs having divergent ends;the said endsbeing disposed in staggered relation, coacting terminalspositioned adjacent to said ends and adapted respectively to be actuatedtherebetwecn, an electromagnet, its armature and means governed by thearmature for engaging and dis engaging the terminals between saidcontact springs, substantially as set forth.

5. In a relaydevice of the class described, the combination with anelectro-magnet and its actuating armature, of a plurality of pairedcontact springs mounted on edge in a horizontal plane, a plurality ofcontact terminals mounted adjacent to the contactstaggered relation in aplurality of horizon tal planes, and means controllable by the armaturefor engaging and disengaging the respective terminals intermediate ofthe paired contact springs, substantially as set forth,

6. In a relay device of the class described, the combination with a pluality of contact springs and their associate terminals, of a pluralityof interposed spacing insulators, slotted upon their sides a accommodatesaid springs and terminalsj and along their tops to accommodate abinlzling-strap, said binding-strap inclosing gthe assembled springs andinsulators; the same having a ribbed portion to engage: the top slotsformed in said insulators, and adapted to hold them in their assembledrelation against displacement, an electro-magnet, its

actuating armature, and means controllable.

thereby for altering the electrical condition of the springs andterminals, substantially as set forth.

7. In a relay device, the combination with an electro-magnet and itsactuating armature, of a plurality of contact springs, an associatedterminal comprising a wire flattened and rendered springdike throughouta portion of its length, whose rounded portion is adapted to be enteredthe contact springs, an insulating mountin for the springs and terminalat a distance rom their contact making portions, and means App T1controllable by the armature lor engaging semiling member adapted toco'mpr and hold the parts firmly ainst dis, nent, attachingparts $116k"and means con trollable by the armatm electrical relation of lcontact-melting members, substantially set forth.

9. In a relay device of the ole d..scrihed, the combination with. aplurality of paired contact springs, substantially rectangular in shapeand having divergent ends arranged in staggered relation alonghorizontal planes, of a plurality of concting wire con tact terminals,an insulating member holding the contact making ends thereof instaggored relation, an electroniagnet, itsarmature, and meanscontrollable by said armature for engaging and disengaging said terforaltering the .ininals intermediate of the rospectivd paired contactsprings, substantialzl ivas set forth. making portions of the pairedsprings; said portions and terminals being disposed in 10. In a relay ofthe class described, the combination with a plurality of paired contactsprings, of a plurality of coacting wire terminals adapted to berespectively flexed into engagement therewith, common insulating membermounting said terminals adiacent to their contactmial-ting portions, andadapted to hold them in relative posi tion With respect to the springs,an electro magnet and its bell ci'anlr r rnature; the free arm thereoflying paralle .ith said terminals and engaged by said insulating member,whereby said terminals are actushed and the armature is restored by thetension thereof, substantially as set forth.

11. In an electrical eontaehmaking de vice, the combination with aninsulating mounting, of a plurality of contact springs mounted thereinclosely adjacent upon edge along a horizontal plane, a plurality ofcoacting spring contacts mounted fiotwise in a horizontal plane closelyadjacent thereto, and means for altering the'electrical rela=- tion ofsaid contacts,substantially as set forth.

12. In a device or" the class described, the combination with aplurality of insulating parts, of a plurality of contact springs andspring contacts mounted between said insslating parts; the insulatedparts being grooved or channeled to mount one set of l loination with aplurality of CM contacts with the ooilies thereof positioned. planes atright angles to the other, inter mediate of the adjacent insulaing paribinding strap inclosing said insulatifl and contacts for securing their.olos I j gather against displacement. substantu. s

Set forth. I

I contact-making springs armature, plurality of mounting said SHlIi}jSthey inolosing strap lirn'ily seen ancl insulatiz ends of said strapbeing pa: frame and secured upon the opp from the springs, sulismmialiyas so lortn lfl. In a relay (levies, ilie ooniliination with a. frame ofa plurality of contact springs insulatinglv mounted 7 frame, nn'eloeiro-I at nnnnin il ugi oi'i Cllfii frame at right angles to said. rings an adistance from tlze'r free; i irinutui'e '25 controlling eoncaoz','iiisiiioneil parallel with said electri: also con trolling the Contactspring, L extension pole pieces extending from aitliv and of llllQelectro-magnet to insure a 31 all air-gap a ljacent to the ends of thearmature. substantially-as set forth.

15. In a multiple oonlaol. relay. the tmilb v nation Witlin frame, of aPllltlllii eontast springs there 11. a night-w e ect-romagnet. disposedat right ugfirs to said springs at a distance from bell "crankari'naiure liarii 1 ing in a planev adjacent lo controlling theireletriml r. other arm disposal parallel magnet. and extension polesubstantially the distance llilhiivi. net-core and the ends of llu:iuriuiurv. substantially as set forth.

16. In a nniliiple Contact relay. nation with a plurality of (,Oiil. Iof a plurality of eoacting ininai's pOb-h tioned substantially parallelt'luzrew ili and adapted to be fiQKOLl intontael wit; said springsadjacent to ilie' respective ends, a common insulating strip inrlosiun.nul movabl v mounting said terminals rearwarblly of their plane ofContact Willi saii'l sprin eleeuro-inagnet and. its armature em withsaid insulating strip and all mate the terminals into an out ment withthe s irings. siibstanliiuliy. forth.

rectangular in outline. of a pluiali .u co acting. terminals. anlIlSllltlilflQ' mounting rearwardly maintaining the same in two :25.-

jacent planes, a common insulaifinggstrip for "M the free ends of theterminals positioned rearwariily of the rectangular encls of thesprings, an eleetro-magnet and its armature ooni'ieotsil with said stripfor the actuation of the terminals into and out of engagement with thesprings, substuntiall as set forth.

1%. in an electrical ronliaooniraking do vice, the eomliinalion .Yllli aplurality of srpni'aie insulating parts grooved in lWO different planes.of a plura spring mnlurts respectively mounted be tween said insulatingparts and. interlocking the sums an illilOHi binding strap. and meansfor altering the electrical relation of the spring eontuots.substantially as set 1? In a inulliple contact relay. the combination\Vllli a plurality of Contact springs arranged in paired relation andupon edge. of a plurality of conoling' contact terminals osilionecl iiruplane sulistanl ll parallel ierewilli zinil :nluplied 1'i-.spo(:tivel lolie .9 l =Serri0ailV into engagement between the paired contact springs.wlierelrv tlie latlei are horizontally flexed. and electroanug neiiemeans for actuating: said contaet ne ininals. substantially as setforth.

20. In. a multiple rontact: relay. the combination with a plurality ofcontact springs, rectangular in outline. and presenting opposed orpaired ei'igaging leriu nuls. of a plurulity oi springlike Contactterminals positioned respectively to be engaged between said terminals.'wl sreli urinal; may loo es- :zlvlislied between sprin respectively 1exeil n planes at riglil. angk to each other, and eleCtro-ana"uetie meanfor actuating tlie nonmel. pa. into and out of ongagemoni,

l1 substantially as set forth.

21. In a multiple eonla 4 liinalion with a frame. oi a plurality ofcontact springs iusulatingly mounted thereon, a

relay. the c0mrelay device. the combination lei-.ii'iii-inagnet and itangular {ariiial'u e. of a sup 'ioifinj frame upon which sziii'laruuiiiu'e is rearn'urill "l. an insulating nuiunting rearwar upon the lra ie arljaoenl to llie axis of said armature. o'l coastingconluctsnaliing members overlying 7 said armature and mounted by saiflinsulation substantially parallel to the ungularly extended end, andaninsulat-ing iii'einber positioned rearwardly lit of ilaicenerlposilioneil of the engaging pol-Liens of said conmc'e makmg members andsilpgertad by in extrennty of the ammture whereby aha (122' tact makingmembers are fiexed. intu and eat In iamimsmy whereof 1 do new afiix. mys1 gmmre presence cf two wltmssss.

GAHEESGE BABCOCK,

Winesses

